When I did some multicolour scrunch dyeing recently, I used the leftover dye to create plain scarves to use as a basis for something else.
The yellow and red scarves were surprisingly bright, considering the subtle results obtained when the colours were combined, so I decided to put them in the indigo vat. Before I did, I used the Japanese arashi shibori technique, which involves wrapping damp fabric round a pipe (or in my case an empty plastic bottle). The fabric is held in place with rubber bands, and then pushed together so that only part of the fabric is exposed to the dye. You can see the indigo vat in the background of the picture where the fabric has been scrunched up.
You can see the results below. I am much happier with these scarves now. The original colour was much too brash, but these are more interesting.